Wave-shaped heat collection elbow pipe

Abstract

The utility model discloses a wave-shaped heat collection elbow pipe, which belongs to the technical field of solar heat collection and comprises a pipe body, the pipe body is in a wave shape and consists of a plurality of wave crests and wave troughs, each wave crest and each wave trough are in smooth transition, a heat absorption coating is coated on the outer surface of the pipe body, a glass heat insulation layer is arranged on the outer side of the pipe body, and the glass heat insulation layer is arranged on the outer side of the pipe body. A limiting structure is arranged on the outer surface of the pipe body, the limiting structure is arranged between the pipe body and the glass heat preservation layer, a supporting structure is arranged in the pipe body, and an end is arranged on one side of the pipe body. According to the wave-shaped heat collection elbow pipe, the pipe body is arranged to be in a wave shape, the absorption efficiency of solar radiation is improved, the rigidity of the whole heat collection pipe is improved through the supporting structure and the limiting structure, and the pipe body is prevented from being broken.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of solar heat collection, especially to a wave type heat collection elbow pipe. BACKGROUND

[0002] The heat collecting pipe for solar water heater is also called solar vacuum tube, and the solar vacuum tube is the core element of the solar water heater, is praised as the "heart" of the solar water heater, and the quality of the solar vacuum tube directly affects the service life and performance of the solar water heater. The traditional solar heat collector adopts a straight pipe or a flat plate structure, can absorb solar radiation, but is prone to thermal stress at high temperature, resulting in pipe deformation or rupture. In addition, the absorption efficiency of the traditional heat collecting pipe is significantly reduced when the sunlight angle changes. Therefore, it has important application value to develop a new wave type heat collecting elbow pipe. SUMMARY

[0003] The utility model discloses a wave type heat collecting elbow pipe to solve the problems mentioned in the background.

[0004] To achieve the above-mentioned purpose, the utility model provides a wave type heat collecting elbow pipe, including the pipe body, the pipe body is wavelike, is composed of a plurality of wave crest and wave trough, each wave crest and each wave trough is smoothly transitioned, the outer surface of the pipe body is coated with a heat absorbing coating, the outer side of the pipe body is provided with a glass heat preservation layer, the outer surface of the pipe body is provided with a limiting structure, the limiting structure is arranged between the pipe body and the glass heat preservation layer, the inside of the pipe body is provided with a support structure, one side of the pipe body is provided with an end.

[0005] Preferably, the limiting structure is provided with multiple groups, and is equidistantly arranged on the smooth transition section between the wave crest and the wave trough.

[0006] Preferably, the limiting structure includes a rotating base, a limiting rod and a rotating wheel, one side of the rotating base is rotatably connected with the limiting rod, and the other side of the limiting rod is rotatably connected with the rotating wheel.

[0007] Preferably, one side of the rotating base is provided with a fixing frame, one side of the fixing frame is provided with a spring, and the other side of the spring is fixedly connected with the limiting rod.

[0008] Preferably, the support structure includes a support rod, and support frames are equidistantly arranged on the support rod.

[0009] Preferably, the end includes a plug, an end cover and a tail wing, one side of the end cover is fixedly connected with the plug, and the other side is fixedly connected with the tail wing.

[0010] Preferably, the outer side of the plug is provided with a sealing ring.

[0011] Preferably, the tail wing abuts against the bottom of the glass heat preservation layer.

[0012] Preferably, an air absorbent is arranged below the tail wing.

[0013] Therefore, the wave-shaped heat collecting elbow pipe has the following beneficial effects:

[0014] (1) The pipe body is arranged in a wave shape, which can disperse thermal stress and prevent the pipe body from being deformed or ruptured due to high temperature;

[0015] (2) The wave-shaped structure increases the surface area of the pipe body and improves the absorption efficiency of solar radiation; when the angle of sunlight changes, the absorption efficiency can still be maintained at a high level;

[0016] (3) The pipe body is provided with a support structure and a limiting structure inside and outside respectively, which improves the overall rigidity and compression resistance of the heat collecting pipe;

[0017] (4) The heat preservation layer is arranged, which reduces heat loss and improves the overall thermal efficiency.

[0018] The technical solutions of the present application will be further described in detail below with reference to the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 FIG. 1 is a structural schematic view of the pipe body of the wave-shaped heat collecting elbow pipe according to the present application;

[0020] Fig. 2 FIG. 2 is an internal sectional view of the wave-shaped heat collecting elbow pipe according to the present application;

[0021] Fig. 3 FIG. 3 is a limiting structure schematic view of the wave-shaped heat collecting elbow pipe according to the present application;

[0022] REFERENCE NUMERALS

[0023] 1, pipe body; 2, wave crest; 3, wave trough; 4, glass heat preservation layer; 5, limiting structure; 6, rotating base; 7, limiting rod; 8, rotating wheel; 9, fixing frame; 10, spring; 11, support rod; 12, support frame; 13, plug; 14, end cover; 15, tail wing; 16, sealing ring; 17, air absorbent. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be further described in detail below with reference to the drawings and examples.

[0025] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] Example

[0027] like Figs. 1-3 As shown, the utility model provides a wave-shaped solar collector bend pipe, including a pipe body 1. The pipe body 1 is wavy and composed of multiple wave crests 2 and wave troughs 3, with a smooth transition between each wave crest 2 and each wave trough 3. The wavy shape of the pipe body 1 can disperse the thermal effect force, prevent the pipe body 1 from deforming or breaking due to high temperature, and increase the surface area of ​​the pipe body 1, thereby improving the absorption efficiency of solar radiation. When the angle of sunlight changes, it can still maintain a high absorption efficiency. The outer surface of the pipe body 1 is coated with a heat-absorbing coating, which is a solar selective absorption coating with high absorptivity and low reflectivity.

[0028] A glass insulation layer 4 is provided on the outside of the tube body 1, and a limiting structure 5 is provided on the outer surface of the tube body 1. The limiting structure 5 is arranged between the tube body 1 and the glass insulation layer 4. There are multiple groups of limiting structures 5, which are equidistantly arranged on the smooth transition section between the wave crest 2 and the wave trough 3. The limiting structure 5 includes a rotating base 6, a limiting rod 7 and a rotating wheel 8. One side of the rotating base 6 is rotatably connected to the limiting rod 7, and the other side of the limiting rod 7 is rotatably connected to the rotating wheel 8. A fixing frame 9 is provided on one side of the rotating base 6, and a spring 10 is provided on one side of the fixing frame 9, and the other side of the spring 10 is fixedly connected to the limiting rod 7. By providing the limiting structure 5, the position of the tube body 1 is limited, and at the same time, the glass insulation layer 4 is supported, thereby improving the compressive strength of the glass insulation layer 4.

[0029] A support structure is provided inside the pipe body 1, and the support structure includes a support rod 11, and support frames 12 are provided at equal distances on the support rod 11. The support structure improves the low compressive strength of the pipe body.

[0030] The pipe body 1 is provided with an end head on one side. The end head comprises a plug 13, an end cover 14 and a tail wing 15, the end cover 14 is fixedly connected with the plug 13 on one side, and is fixedly connected with the tail wing 15 on the other side. The outer side of the plug 13 is provided with a sealing ring 16. The tail wing 15 abuts against the bottom of the glass heat preservation layer 4, and fixes and supports the pipe body 1.

[0031] The end head is provided with a getter 17 below the tail wing 15. In specific use, the pipe body 1 and the glass heat preservation layer 4 are vacuumized, and then the vacuum state is maintained through the getter 17.

[0032] Therefore, the utility model discloses a kind of wave type heat collecting elbow pipe, pipe body is set to wave shape, improve the absorption efficiency of solar radiation, in addition, through supporting structure and limiting structure, the rigidity of overall heat collecting pipe is improved, prevent pipe body rupture.

[0033] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can still be modified or replaced by equivalents, and these modifications or equivalent replacements should not make the modified technical solutions deviate from the spirit and scope of the present application.

Claims

1. A wave-shaped heat collecting elbow, characterized by: The utility model comprises a tube body, which is wavy and consists of a plurality of crests and troughs, with a smooth transition between each crest and each trough, the outer surface of the tube body is coated with a heat-absorbing coating, a glass insulation layer is provided on the outside of the tube body, a limiting structure is provided on the outer surface of the tube body, the limiting structure is provided between the tube body and the glass insulation layer, a supporting structure is provided inside the tube body, and an end head is provided on one side of the tube body.

2. The wave-shaped heat collecting elbow according to claim 1, characterized in that: The limiting structures are provided in multiple groups and are arranged at equal distances on the smooth transition section between the wave crest and the wave trough.

3. The corrugated heat collecting elbow according to claim 1, characterized in that: The limiting structure includes a rotating base, a limiting rod and a rotating wheel. One side of the rotating base is rotatably connected to the limiting rod, and the other side of the limiting rod is rotatably connected to the rotating wheel.

4. The wave-shaped heat collecting elbow according to claim 3, characterized in that: A fixing bracket is provided on one side of the rotating base, a spring is provided on one side of the fixing bracket, and the other side of the spring is fixedly connected to the limiting rod.

5. The wave-shaped heat collecting elbow according to claim 1, characterized in that: The support structure includes a support rod, and support frames are arranged at equal distances on the support rod.

6. The wave-shaped heat collecting elbow according to claim 1, characterized in that: The end head comprises a plug, an end cover and a tail wing. One side of the end cover is fixedly connected to the plug, and the other side is fixedly connected to the tail wing.

7. The corrugated heat collecting elbow according to claim 6, characterized in that: A sealing ring is provided on the outside of the plug.

8. The corrugated heat collecting elbow according to claim 6, characterized in that: The tail wing abuts against the bottom of the glass insulation layer.

9. The corrugated heat collecting elbow according to claim 6, characterized in that: A getter is arranged below the tail wing.

Images